extern int osi_utoa(char *buf, size_t len, unsigned long val);
#define osi_Assert(exp) (void)((exp) || (osi_AssertFailK( #exp , __FILE__, __LINE__), 0))
-#define osi_Msg printf)(
+#ifdef AFS_LINUX20_ENV
+# define osi_Msg printk)(
+#else
+# define osi_Msg printf)(
+#endif
#define osi_VMsg vprintf)(
#define osi_YieldIfPossible()